.app {
  position: absolute;
  left: 50%;
  top: 10vmin;
  width: 60vmin;
  margin-left: -30vmin;
  border: solid 1px #8d8d8d;
  background: #fff;
}

.btn {
  height: 35px;
  padding: 0 5px;
  line-height: 35px;
  text-align: center;
  color: #fff;
  background: #286096;
  border-radius: 5px;
  cursor: pointer;
}

.btn-sm {
  height: 25px;
  line-height: 25px;
}

.btn-danger {
  background: #c44040;
}

.header {
  position: relative;
  width: 100%;
  height: 45px;
  padding: 10px;
}

.header > input {
  width: 100%;
  height: 100%;
  padding-left: 10px;
  border: 1px solid #dcdcdc;
}

.list {
  position: relative;
  width: 100%;
  padding: 10px;
}

.list ul {
  position: relative;
  width: 100%;
}

.list ul > li {
  position: relative;
  width: 100%;
  height: 45px;
  padding: 5px 0;
}

.list ul > li:first-child {
  border-top: 1px solid #dcdcdc;
}

.list ul .item {
  width: 100%;
  height: 100%;
  padding: 0 5px;
  line-height: 35px;
  display: flex;
  justify-content: space-between;
  border: 1px solid #dcdcdc;
  border-top: none;
}

.list ul .item.active {
  background: #ffa51d;
}

.list ul > li input[type=checkbox] {
  margin-right: 5px;
  vertical-align: middle;
}

.list ul > li .btn {
  position: relative;
  top: 5px;
}

.footer {
  position: relative;
  width: 100%;
  height: 45px;
  padding: 5px 10px;
}

.footer .progress {
  float: left;
  text-align: center;
  line-height: 35px;
}

.footer .btn-danger {
  float: right;
}